PHASMIDjE. piiasma. 



119 



Long. corp. maris, uric. 2 ; cap. lin. 1^- ; anten. unc. 2^- ; 

 proth. lin. 1^ ; mesoth. lin. 2 ; metath. lin. 4 -J- ; abdom. 

 lin. 11 + lin. 2% = lin. 13J ; tegm. lin. 2 J ; alar, expans. 

 unc. 2f . 



Hab. In Columbia (D. Gaudichaud). In Mus. Saun- 

 ders. 



This species is long and slender, of an obscure blackish- 

 brown colour, opake. The head is nearly square, but 

 slightly convex, with the three ocelli on the crown, the an- 

 terior one considerably in advance of the others ; on each 

 side behind the eyes is an obscure pale streak . The antennae 

 are long and slender ; the joints are very long, and each 

 alternate joint has its base marked with a broad whitish 

 ring ; beyond the middle each joint is composed of a great 

 number of minute articulations. The prothorax is oval, 

 the anterior angles being truncated and spiraculiferous. 

 The mesonotum is scarcely longer than the prothorax, finely 

 rugose, and with two oblique rows of small tubercles on 

 each side extending to the insertion of the tegmina ; the 

 latter are small and nearly square, the centre strongly ele- 

 vated into an obtuse angle, the ridge of which is marked 

 with a dull whitish line. The wings are large, opake 

 whitish, with a slight fulvous tinge, which is the colour of 

 the longitudinal veins ; the veins and veinlets along the 

 outer margin of the wings are brown ; the costal area is 

 blackish, with the principal vein furcate near the base. 

 The abdomen is long, narrow, of nearly equal width through- 

 out ; the terminal ventral segments considerably swollen and 

 angulated, not extending beyond the eighth dorsal segment ; 

 the anal styles deflexed and ovate. The legs arc long and 

 slender, destitute of spines ; the basal joint of the tarsi is 

 as long as the three following joints. 



Plate XVII. Fig. 2. The male, of the natural size. 2 a. The 

 terminal segments of the body seen sideways. 



6. (307.) Phasma Salpingus, Westw. 

 Plate XXXIII. fig. 3, female. 



Elongatum, obscurum, fuscum, olivaceo-variegatum ; an- 

 tennis pallidis, fusco-annulatis ; capite 3-ocellato, posticc 

 in tuberculum conicum elevato ; mesothorace brevi, spinis 

 duabus ante medium armato ; tegminibus parvis, oblongis, 

 oblique truncatis, venis pallidis ; alis permagnis, fumosis, 

 venis longitudinalibus obscurioribus, area costali virescente, 

 maculis latis fuscis irrcgularibus undatis ; pedibus lougis, 

 gracilibus, fusco et virescente variis (foem.). 



Long. corp. unc. 2, lin. 5 ; cap. lin. 2 ; anten. unc. 2f ; 

 mesoth. lin. 2§ ; metath. lin. G ; abdom. lin. 14 + lin. 3-J- 

 =lin. 17^; tegm. lin. 3-Jj alar, expans. unc. 4. 



Hab. In Bogota. B.M. 



This species is well distinguished by its short and bi- 

 spinose mesothorax, and by the peculiar markings of the 

 costal area of the wings. The general colour is dark brown 

 variegated with olivaceous green. The head is very convex 

 behind, and raised into a large conical tubercle ; the three 

 ocelli are very large. The antennae are pale luteous, very 

 long and slender, but only 24-jointed ; the apical joints are, 

 however, finely and minutely annulated ; each joint has the 

 apical half brown. The mesothorax is very little longer 

 than the prothorax, armed before its middle with two erect 

 obtuse points, preceded by two more minute ones ; its lateral 

 margins are also armed with two or three small spines. 

 The tegmina are larger than the mesothorax ; the central 

 carina is very strongly elevated and rounded, the apex is 

 obliquely truncated, and the disk strongly reticulated with 

 the fine pale veinlets. The wings are large ; the costal area 

 pale olivaceous green, with numerous irregular-sized broad 

 brown waved spots ; the chief vein is furcate near the base ; 

 the hinder area smoky coloured, with darker longitudinal 

 veins. The abdomen is dark brown ; the terminal segments 

 short, and conical at the tip ; the oviduct small, but reach- 

 ing to the extremity of the abdomen ; the two anal styles 

 short, obtuse, setose, and convergent at the tip. The legs 

 are long, slender, and simple, alternately marked with 

 brown and olivaceous spots ; the tarsi are long, the basal 

 joint being about as long as the three following joints. 



Plate XXXIII. Fig. 3. The female, of the natural size. 3 a. 

 The terminal segments of the body seen sideways. 



7. (308.) Phasma Tithonus. 

 Flavescenti-viride ; capite thoraceque viridi-flavis, nigro- 



lineatis ; tegminibus in medio elevatis, nigro-lineatis ; alis 

 hyalinis ; abdomine basi brunneo-flavo, apice viridi, nigro- 

 maculato ; pedibus supra viridibus, nigro-lineatis, subtus 

 nigris ; antennis nigris, griseo-albo-aunulatis. 



Long. corp. maris, 1" 7'" ; anten. 1"; alar, expans. 2". 



Long. corp. foem. 2" 9'" ; anten. 1" 7'" ; alar. exp. 4". 



Phasma Tithonus, G. R. Gray, Si/n. Pliasm. p. 23. 

 Serville, II. N. Orth. p. 272. 

 Be Haan, Orth. Orient, p. 123. 

 Phasma ornatum, Burmeister, Ilandb. d. Ent. ii. 2. 58j. 



Charpentier, Orth. Bescr. pi. 42. 

 Phasma lineatum, Fischer, Bull. Soc. Imp. Nat. Mosc. vii. 

 327. 

 Hab. In Brasilia (nee Ind. orient.). B.M., &c. 



8. (309.) Phasma helvolum. 

 Stramineo-flavescens ; capite subtdongato, supra depresso, 



macula nigra verticali ; prothorace capite paulo breviori, 

 tubcrculis nonnullis nigricantibus minutis discoidalibus Ion- 



